Journal of the American Chemical Society, Vol.141, No.35, 13783-13787, 2019
Catalytic Enantioselective-House Meinwald Rearrangement: Efficient Construction of All-Carbon Quaternary Stereocenters
A catalytic asymmetric House-Meinwald rearrangement for the synthesis of both cyclic and acyclic ketones is disclosed. From readily accessible racemic tetrasubstituted epoxides, this approach provides efficient access to chiral ketones bearing alpha all-carbon quaternary stereocenters with high enantiocontrol. The observation of positive nonlinear effects and nontrivial kinetic feature provided important insights into the mechanism.